Welcome to the new FlexRadio Community! Please review the new Community Rules and other important new Community information on the Message Board.
If you are having a problem, please refer to the product documentation or check the Help Center for known solutions.
Need technical support from FlexRadio? It's as simple as Creating a HelpDesk ticket.

Transverter RX switch

dlwarnberg
dlwarnberg Member ✭✭
Here is my setup, I have a flex 6500, a 70 cm and a 2 meter elecraft transverters, M2 sequencers, an M2 LEO pack with a Yaesu G-450A rotator...

Here is the issue, I discovered the 70cm side was def, I could transmit fine, worked several of the XW-2x sat's wihout issue, but I still could not hear anything from my local repeaters on the 70cm side.  My HT could pick them up fine.  After a day of troubleshooting I discovered the switch box I am using to switch RX between 2 meters and 70cm is the issue.  I take a direct cable from the RX side of the radio to the RX on the transverter and several things happen, noise level drops like a rock, I can hear EVERYTHING... so my switch is BAD.

Question, for those of that have the same setup what switch are you using?  I have a generic "Data Transfer Switch" I ordered from amazon and am having a hard time finding a good switch.

Suggestions?

Thanks

David

Answers

  • George KF2T
    George KF2T Member ✭✭✭
    edited May 2019
    Any good coax switch rated for the frequencies in question should work. I use a Daiwa 4-position coax switch for exactly the same receiver configuration. Works perfectly.
  • dlwarnberg
    dlwarnberg Member ✭✭
    edited March 2017
    George, so you are using adapters between I would guess.. was hoping to avoid that but from what I'm seeing it's night and day difference with a direct hookup..

    Thanks
  • dlwarnberg
    dlwarnberg Member ✭✭
    edited May 2019
    Guess this is why you don't buy cheap switches...

    image
  • George KF2T
    George KF2T Member ✭✭✭
    edited March 2017
    You can make cables with the matching connectors, but at 28 MHz a BNC to UHF adapter is no biggie. Just use good cable to prevent undesirable IF ingress.
  • WX7Y
    WX7Y Member ✭✭✭✭
    edited June 2020
    you could also try building a power divider, being this is all on RX it is not very difficult. 

    all you need is a small metal box (Like a Altoid tin) 3 BNC chassis jacks (or what ever you need) and  resisters, the down fall is it will have 3db of loss which you may already be making up with pre-amps. 
    See the schematic below

    73's 
    Bret
    WX7Y

    image
  • dlwarnberg
    dlwarnberg Member ✭✭
    edited March 2017
    Thank you.. I'm all about building stuff...  and yes I am using preamps.

    Thanks again
  • George KF2T
    George KF2T Member ✭✭✭
    edited March 2017
    Tricky thing to have both transverters on the same IF at the same time. Could get messy.
  • Simon Lewis
    Simon Lewis Member ✭✭
    edited March 2017
  • dlwarnberg
    dlwarnberg Member ✭✭
    edited March 2017
    Thanks Simon

Leave a Comment

Rich Text Editor. To edit a paragraph's style, hit tab to get to the paragraph menu. From there you will be able to pick one style. Nothing defaults to paragraph. An inline formatting menu will show up when you select text. Hit tab to get into that menu. Some elements, such as rich link embeds, images, loading indicators, and error messages may get inserted into the editor. You may navigate to these using the arrow keys inside of the editor and delete them with the delete or backspace key.